| Ajax request not work rails 4 Posted: 30 May 2016 06:39 AM PDT I am trying to hit the db at the exit of a field without reload the form using Ajax. The controller must do some process on the data obtained from the db and respond to the view. Then the user will continue with the input. The following code is not working in my rails 4 app. I am missing something and just can't see what is wrong. I have the same piece of code working in a rails 3.2 application without problem. In rails 3.2 the request go to check_matricula method, but in rails 4 go to show method in the controller. Gemfile... gem 'responders', '~> 2.0' View... <div class="field"> <%= f.text_field :matricula, { "data-remote" => true, "data-url" => "/liquidaciones_de_viajes/check_matricula", "data-type" => :json, :size => 10 } %> <span id="check_matricula"> </span> </div>
Controller... class LiquidacionesDeViajesController < ApplicationController respond_to :html, :json def check_matricula @matricula = Matricula.find_by_codigo(params[:liquidacion_de_viajes][:matricula]) ... some process that result in matricula_ok true or false ... if matricula_ok respond_with(@matricula.empresa.razon_social) else respond_with(nil) end end
assets/javascripts/check_matricula.js $(document).ready(function() { $("#liquidacion_de_viajes_matricula").bind('ajax:success', function(evt, data, status, xhr){ if (data !== null) { $('#razon_social').html(data.razon_social); $('#check_matricula').html(''); } else { $('#check_matricula').html('Error de matricula'); $('#razon_social').empty(); } }); $("#liquidacion_de_viajes_matricula").live('ajax:before', function(){ if ($(this).val() == '') { return false; } }); $("#liquidacion_de_viajes_matricula").focus(function(){ $('#check_matricula').empty(); $('#razon_social').empty(); }); });
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| ng token auth with rails devise user registration unpermitted parameters error Posted: 30 May 2016 06:38 AM PDT I have managed to set up ng-token-auth with ionic(angular) and devise-token-auth with rails however when I create a User an error is logged in the rails console even though the user is created. In the console this shows up Can't verify CSRF token authenticity Unpermitted parameters: confirm_success_url, config_name, registration Unpermitted parameters: confirm_success_url, config_name, registration Unpermitted parameters: confirm_success_url, config_name, registration
The user is created in the database however I have designed the ionic user controller to login the user once the registration is complete by using a promise. The controller is below: comeDineApp.controller('userController', ['ipCookie','$scope', '$state', '$auth', function(ipCookie, $scope, $state, $auth){ $scope.handleRegBtnClick = function() { console.log("hello") $auth.submitRegistration($scope.registrationForm) .then(function() { console.log("welcome") $auth.submitLogin({ email: $scope.registrationForm.email, password: $scope.registrationForm.password }); }); }; }]);
In this case the submitLogin function doesn't execute as the promise is not resolved even though the user is successfully created in the DB. My rails user model is below: class User < ActiveRecord::Base # Include default devise modules. devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :confirmable, :omniauthable include DeviseTokenAuth::Concerns::User has_many :tables before_save -> do self.uid = SecureRandom.uuid skip_confirmation! end end
and my user controller is: class UsersController < ApplicationController before_action :authenticate_user! respond_to :json def show render json: current_user.tables end end
Any ideas how I can resolve this either in the rails or the angular so that the error isn't presented and the angular promise resolves to login directly after signing up? |
| ruby on rails slim how to handle a value in select Posted: 30 May 2016 06:27 AM PDT I want to save the value of the option after submit .this a part of code (slim) but i can use also rubyon rails. please someone have any idea the select item is reference- brand- color- model- gender-ext_product_id well.search-form form input type="hidden" value="put" name="_method" - if search.scope == :my_items input type="hidden" value="#{search_params.published}" name="published" input type="hidden" value="#{search_params.query}" name="query" fieldset .row-fluid .span8 label for="query" =translate"keyword" select#query.selectoption name="keywordSearch" option[value="reference" name="reference" selected=("selected" if @_source=="reference")] Reference option[value="brand" name="brand" selected=("selected" if @_source=="brand")] Brand option[value="model" name="model" selected=("selected" if @_source=="model")] Model option[value="color" name="color" selected=("selected" if @_source=="color")] Color option[value="ext_product_id" name="ext_product_id" selected=("selected" if @_source=="ext_product_id")] Productid option[value="gender" name="gender" selected=("selected" if @_source=="gender")] Gender
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| Rescue exception thrown by a redirect_to :back Posted: 30 May 2016 06:59 AM PDT Little background information: I have a project with authenticated users which can have multiple 'scopes' of data. A scope determines which records can and can't be accessed by a user. A logged in user is always subsribed to a single scope stored in the session. A user can at any time switch between the scopes he has access to, regardless of which page he is on. After a scope switch I would like to try to reload the same page by using redirect_to :back. This is not always possible, since the current scope might not allow access to the page that was previously being viewed. In those cases, the controller in question will throw an ActiveRecord::RecordNotFound exception in the respective controller on the .find(params[:id]) call, which is very ugly. I would very much like to gracefully fallback to a redirect_to :root with an accompanying alert message. Currently I have this, but this does not work: def switch_scope s = current_client.scopes.find(params[:scope_id]) set_scope(s.id) begin flash[:notice] = 'Scope switched succesfully.' redirect_to :back # <= This might throw NotFoundException rescue flash[:alert] = 'Scope switched. Page could not be reloaded' redirect_to :root end end
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| Calculate NPS in Ruby Posted: 30 May 2016 07:00 AM PDT The net promoter score can have the values 0-10. It is divided in three groups: Promoters = respondents giving a 9 or 10 score
Passives = respondents giving a 7 or 8 score
Detractors = respondents giving a 0 to 6 score The score is calculated as the difference between the percentage of Promoters and Detractors. Let's say we have the scores [10, 9, 10, 6, 2, 5, 10]. This would give the score +14 (57% - 43%). I wish I could count occurrences of a range in an array, if that would be possible I would do total_count = array.size promoters = array.count(9..10) passives = array.count(7..8) detractors = array.count(0..6) promoters_perc = promoters.to_f / total_count * 100 detractors_perc = detractors.to_f / total_count * 100 score = promoters_perc - detractors_perc
How can I do this calculation? |
| Categories with Ancestry gem Posted: 30 May 2016 06:21 AM PDT I'm struggling a bit to wrap my head around the Ancestry gem. I'm trying to make categories which contain products. I've got my current setup as follows: - Categories has the column ':ancestry, :string'
- Categories model has the line 'has_ancestry'
- Products model has nothing to do with Ancestry on it yet.
How do I go about actually putting products within certain categories? or is the set-up right for doing the following tree structure: Category - Product - Product - Product Category - Product - Product - Product
Any help would be brilliant. |
| Active Model Serializers 0.10 exclude namespaces with JSON adapter? Posted: 30 May 2016 06:36 AM PDT Is there some way to exclude the namespace part of the model name in the root key? I used Active Model Serializer version 0.9 before and my JSON representation of a User at localhost:3000/api/v1/users/1 was something like: { "user": { "id": 1, "first_name": "Foo", "last_name": "Bar" } }
I recently upgraded to version 0.10 and now I get the namespace included in the root key: { "api/v1/user": { "id": 1,"first_name": "Foo", "last_name": "Bar" } }
I want the root key to be like before, that is "user" instead of "api/v1/user". |
| web_1 | /docker-entrypoint.sh: line 99: exec: bundle: not found app_web_1 exited with code 127 Posted: 30 May 2016 05:50 AM PDT I'm trying to use docker to push my existing rails project to a docker container. I'm using postgres database. When I did docker-compose up I get following error in the logs. web_1 | /docker-entrypoint.sh: line 99: exec: bundle: not found app_web_1 exited with code 127
DokcerFile FROM ruby:2.2.0 RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs RUN mkdir /myapp WORKDIR /myapp ADD Gemfile /myapp/Gemfile ADD Gemfile.lock /myapp/Gemfile.lock RUN gem install bundler RUN bundle install ADD . /myapp FROM postgres:9.4 #FROM library/postgres ENV POSTGRES_USER my-user-name ENV POSTGRES_PASSWORD '' ENV POSTGRES_DB app-database-name
docker-compose.yml version: '2' services: db: image: postgres web: build: . command: bundle exec rails s -p 3000 -b '0.0.0.0' volumes: - .:/myapp ports: - "3000:3000" depends_on: - db
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| What is `StringIO` in the context of RSpec testing (Ruby on Rails)? Posted: 30 May 2016 06:55 AM PDT What is StringIO in Ruby on Rails? I'm trying to understand another SO answer that references StringIO, but its over my head. I would suggest using StringIO for this and making sure your SUT accepts a stream to write to instead of a filename. testIO = StringIO.new sutObject.writeStuffTo testIO testIO.string.should == "Hello, world!"
Source: Rspec: how to test file operations and file content Ruby-doc.org Pseudo I/O on String object. Source: http://ruby-doc.org/stdlib-1.9.3/libdoc/stringio/rdoc/StringIO.html) Robots.thoughtbot This is common in tests where we might inject a StringIO instead of reading an actual file from disk. Source: https://robots.thoughtbot.com/io-in-ruby#stringio My case: File.open("data.dat", "wb") {|f| f.write(snapshot)}
In my application I want to test the above, but I'm still confused how StringIO applies to implementing an RSpec test. Could anyone with some experience in StringIO give some guidance? |
| Can't read data from hash using column(:) in rails Posted: 30 May 2016 06:02 AM PDT a = {"item"=>{"id"=>"34567", "name"=>"AAX item 1 Inventory23", "description"=>"AAX item 1 Inventory23", "unit_price"=>"2342", "item_type"=>"Inventory", "track_qty_on_hand"=>"true", "qty_on_hand"=>"50000", "inv_start_date"=>{"(3i)"=>"4", "(2i)"=>"5", "(1i)"=>"2016"}}, "company_id"=>"1", "item_type"=>"Inventory", "amount"=>"1232"} Output: a['item'] = {"id"=>"34567", "name"=>"AAX item 1 Inventory23", "description"=>"AAX item 1 Inventory23", "unit_price"=>"2342", "item_type"=>"Inventory", "track_qty_on_hand"=>"true", "qty_on_hand"=>"50000", "inv_start_date"=>{"(3i)"=>"4", "(2i)"=>"5", "(1i)"=>"2016"}} a[:item] = nil So, How to get data as a[:item]. What I have to change? |
| Rails server not starting in production mode Posted: 30 May 2016 06:29 AM PDT I want to start my rails server in production mode but it is exiting immediately. rails server -e production => Booting Thin => Rails 4.1.4 application starting in production on http://0.0.0.0:3000 => Run `rails server -h` for more startup options => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option) => Ctrl-C to shutdown server Thin web server (v1.6.4 codename Gob Bluth) Maximum connections set to 1024 Listening on 0.0.0.0:3000, CTRL+C to stop Exiting
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| Performance issues when upgrading from ruby 1.9.3 to ruby 2.2.2 Posted: 30 May 2016 05:45 AM PDT We have finally upgraded our app from ruby ruby-1.9.3-p545 to ruby-2.2.2. We are currently running rails 3.2 We have now subsequently encountered a 50% drop in performance. I am pretty suprised by this and not to sure where to start debugging. If anybody has any suggestions or experienced this pain before some advice would be much appreciated. |
| Ho do I specify how ActiveSupport::JSON.encode handles nested hash integer keys Posted: 30 May 2016 05:54 AM PDT I'm not sure if this is a bug, or if I'm missing an option to specify how to handle integer keys of nested hashes when converting to JSON using rails ActiveSupport::JSON.encode. Example of the problem $ rails console [deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message. Loading development environment (Rails 3.2.22.1) Frame number: 0/5 [1] pry(main)> ActiveSupport::JSON.encode({outer: {1 => "a"}}) => "{\"outer\":{\"1\":\"a\"}}"
As you can see, the inner hash key 1 has been converted to a string. I know there are various options to specify how to handle unknown classes/type and ActiveRecord specific things (like allowing joins with :include), but I would have thought that an integer as a 'native' type wouldn't require that sort of thing, and that nesting would be handled by default. |
| update join table has_many through with additional checkboxes Posted: 30 May 2016 05:46 AM PDT if i dont find solution here i have no idea where i should looking for... I know there is right, easy solution for it...but something i just dont understand. I have 3 models... Scheme.rb class Scheme < ActiveRecord::Base has_many :projects has_many :custom_issue_field_definitions, through: :scheme_custom_issue_field_definitions has_many :scheme_custom_issue_field_definitions end
CustomIssueFieldDefinition.rb class CustomIssueFieldDefinition < ActiveRecord::Base has_many :schemes, through: :scheme_custom_issue_field_definitions has_many :scheme_custom_issue_field_definitions belongs_to :custom_issue_field end
SchemeCustomIssueFieldDefinition.rb class SchemeCustomIssueFieldDefinition < ActiveRecord::Base belongs_to :scheme belongs_to :custom_issue_field_definition end
Join Model have 3 additional fields...with type: boolean. 
I'd like to update scheme_custom_issue_field_definitions table. How controller and form should looks like? Additional image:  Update: In console i can update it like this: a = Scheme.first b = CustomIssueFieldDefinition.first c = a.scheme_custom_issue_field_defintitions.find_or_create_by(custom_issue_field_definition: b) c.update_attributes(visible: 1, reportable: 0, required: 0)
Next Update: Now form looks like this (what is completely wrong): <%= simple_form_for @scheme_new_custom_issue_field, url: configurations_scheme_path(@scheme), method: :put do |f| %> <% @available_custom_issue_field_definitions.each do |custom_issue_field| %> <tr> <td><%= custom_issue_field.label %></td> <td><%= f.input :visible, as: :boolean %></td> <td><%= f.input :reportable, as: :boolean %></td> <td><%= f.input :required, as: :boolean %></td> </tr> <% end %> <%= f.button :submit, class: "btn btn-primary" %> <% end %>
and schemes_controller def update @scheme = Scheme.find(params[:id]) @scheme_new_custom_issue_field = @scheme.scheme_custom_issue_field_definitions. find_or_create_by(scheme_id: @scheme, custom_issue_field_definition_id: params[:custom_issue_field_definition_id]) if @scheme_new_custom_issue_field.update_attributes(scheme_custom_issue_field_definition_params) flash[:success] = "Scheme has been successfully updated" redirect_to :back else render :edit end end
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| How can I avoid the Post Processing in Paperclip Posted: 30 May 2016 05:37 AM PDT I use Paperclip for Document and Image Processing of both Tiff and PDF. So Tiff and PDF could be downloaded. Tiff should be converted to PDF and PDF should be left as it is. But when I download an PDF the Destination File has only one page. It seems like the Post Processing of Paperclip makes an automatic convert: convert '/tmp/00c865a9d6c212a20cd851a448969f5520160530-4574-1yqdtq.pdf[0]' -auto-orient '/tmp/00c865a9d6c212a20cd851a448969f5520160530-4574-1yqdtq20160530-4574-8l8k7z.pdf'
How can I avoid the Post Processing? My Code: has_mongoid_attached_file :document, styles: lambda { |a| if a.instance.isTiff? { pdf: { format: 'pdf', processors: [:tiff_to_pdf] } } else { pdf: { format: 'pdf' } } end }
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| Rails 4 - Devise :return_to previous url Posted: 30 May 2016 05:45 AM PDT In rails 4.2.4, I am using devise (3.5.6, 3.5.2, 3.2.4) gem. The scenario which should work for me is, When user try to access user_profile_url(:anchor=>'section1') page from an email, it asks him to login, after login it leads to users_home_path. If he already logged in then it directly redirect to user_profile_url page(#section1). How can I redirect to user_profile_url(:anchor=>'section1') as soon as session creates (clicked from email link)? I have tried to fix it by modifying after_sign_in_path_for(resource) method but it is not working. def after_sign_in_path_for(resource) session[:return_to] || users_home_path end
Please help me to solve this issue. |
| RoR: Cannot Migrate Database to Heroku Posted: 30 May 2016 05:54 AM PDT I am having trouble migrating my database to Heroku. I have checked the other issues that address this to no avail. I can really use a second pair of eyes on my code to help me figure this out. This is the error I get: rake aborted! StandardError: An error has occurred, this and all later migrations canceled: PG::UndefinedTable: ERROR: relation "props" does not exist : ALTER TABLE "comments" ADD CONSTRAINT "fk_rails_1d3f70cf04" FOREIGN KEY ("prop_id") REFERENCES "props" ("id")
It seems to get caught while migrating this file: class CreateComments < ActiveRecord::Migration def change create_table :comments do |t| t.string :commenter t.text :body t.references :prop, index: true, foreign_key: true t.timestamps null: false end end end
This is the migration file where I create the table props: class CreateProps < ActiveRecord::Migration def change create_table :props do |t| t.string :title t.text :text t.references :user, index: true, foreign_key: true t.timestamps null: false end end end
My schema is here: ActiveRecord::Schema.define(version: 20160528205746) do # These are extensions that must be enabled in order to support this database enable_extension "plpgsql" create_table "answers", force: :cascade do |t| t.string "choice" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "created_by" t.integer "user_id" t.integer "prop_id" end create_table "comments", force: :cascade do |t| t.string "commenter" t.text "body" t.integer "prop_id" t.datetime "created_at", null: false t.datetime "updated_at", null: false end add_index "comments", ["prop_id"], name: "index_comments_on_prop_id", using: :btree create_table "props", force: :cascade do |t| t.string "title" t.text "text" t.integer "user_id" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "choice" t.string "answer" t.integer "answerId" end add_index "props", ["user_id"], name: "index_props_on_user_id", using: :btree create_table "user_answers", force: :cascade do |t| t.integer "user_id" t.integer "answer_id" t.datetime "created_at" t.datetime "updated_at" end create_table "users", force: :cascade do |t| t.string "username" t.string "email" t.integer "score", default: 0 t.integer "prop_id" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "password_digest" t.string "created_by" t.boolean "admin", default: false t.integer "answers_id" t.integer "answer_id" end add_index "users", ["answer_id"], name: "index_users_on_answer_id", using: :btree add_index "users", ["prop_id"], name: "index_users_on_prop_id", using: :btree create_table "wins", force: :cascade do |t| t.string "correctAnswer" t.integer "user_id" t.datetime "created_at", null: false t.datetime "updated_at", null: false end add_index "wins", ["user_id"], name: "index_wins_on_user_id", using: :btree add_foreign_key "users", "answers" end
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| localhost issue for Ruby on Rails Existing Project, On a new project everything works fine Posted: 30 May 2016 05:15 AM PDT Ruby on rails can't connect to localhost after the server starts normally by typing rails s on console - boots using thin ... - Hosts file is fine .. - Created a new project and everything works fine with it .. - can't connect to localhost on Existing project(xyz) , no errors in log file .. - Same project runs fine on my other laptop. - tried for 127.0.0.1 and other ports $ ruby -v ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-darwin15] rails -v Rails 4.2.1 $ telnet localhost 3000 Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host --------------------
what do i do ? please help. Thanx in advance. |
| There was an error while trying to load the gem 'yard' Posted: 30 May 2016 05:06 AM PDT I am using sidekiq upstart job but while running sudo service sidekiq restart getting the following error There was an error while trying to load the gem 'yard'. /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require' /home/ubuntu/.rvm/gems/ruby-2.2.1@myapp/gems/bundler-1.11.2/lib/bundler.rb:99:in `require' /home/ubuntu/myapp/config/application.rb:8:in `<top (required)>' /home/ubuntu/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/sidekiq-3.2.5/lib/sidekiq/cli.rb:231:in `require' /home/ubuntu/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/sidekiq-3.2.5/lib/sidekiq/cli.rb:231:in `boot_system' /home/ubuntu/.rvm/rubies/ruby-2.2.1/lib/ruby/gems/2.2.0/gems/sidekiq-3.2.5/lib/sidekiq/cli.rb:49:in `run' /home/ubuntu/.rvm/gems/ruby-2.2.1@global/gems/sidekiq-3.2.5/bin/sidekiq:8:in `<top (required)>' /home/ubuntu/.rvm/rubies/ruby-2.2.1/bin/sidekiq:23:in `load' /home/ubuntu/.rvm/rubies/ruby-2.2.1/bin/sidekiq:23:in `<main>'
Following is the upstart job /etc/init/sidekiq.conf # /etc/init/sidekiq.conf - Sidekiq config # This example config should work with Ubuntu 12.04+. It # allows you to manage multiple Sidekiq instances with # Upstart, Ubuntu's native service management tool. # # See workers.conf for how to manage all Sidekiq instances at once. # # Save this config as /etc/init/sidekiq.conf then manage sidekiq with: # sudo start sidekiq index=0 # sudo stop sidekiq index=0 # sudo status sidekiq index=0 # # Hack Upstart's reload command to 'quiet' Sidekiq: # # sudo reload sidekiq index=0 # # or use the service command: # sudo service sidekiq {start,stop,restart,status} # description "Sidekiq Background Worker" # This script is not meant to start on bootup, workers.conf # will start all sidekiq instances explicitly when it starts. start on runlevel [2345] stop on runlevel [06] # change to match your deployment user setuid ubuntu setgid ubuntu #respawn #respawn limit 3 30 # TERM is sent by sidekiqctl when stopping sidekiq. Without declaring these as # normal exit codes, it just respawns. normal exit 0 TERM # Older versions of Upstart might not support the reload command and need # this commented out. reload signal USR1 # Upstart waits 5 seconds by default to kill the a process. Increase timeout to # give sidekiq process enough time to exit. kill timeout 15 #instance $index script # this script runs in /bin/sh by default # respawn as bash so we can source in rbenv exec /bin/bash <<'EOT' # Pick your poison :) Or none if you're using a system wide installed Ruby. source /home/ubuntu/.bash_profile source /home/ubuntu/.rvm/scripts/rvm source /home/ubuntu/.bashrc # Logs out to /var/log/upstart/sidekiq.log by default cd /home/ubuntu/myapp/ exec bundle exec sidekiq -C config/sidekiq.yml -e production EOT end script
How to get this working. I had also installed the gem yard but still getting the same error. |
| What is the best way to do Natural Language Processing in Rails app? Posted: 30 May 2016 05:56 AM PDT I have a Rails app. I need to implement automatic text categorization algorithms and possibly more NLP capabilities in app. I believe Ruby does not have good NLP tools available as Python has. I am using a separate resque server for process background jobs. I believe I have following - Run python scripts using resque jobs
- Run a flask application on a separate server which can either talk to resque job or can automatically update the app database with processed results.
- Use Ruby tools mentioned in this thread
- Any other suggestions welcome
Please let me know what is the best way to do it. Are there any similar working examples? |
| ruby on rails many to many relationship views Posted: 30 May 2016 06:10 AM PDT i have created a many to many relationship between my phones table and accessories table using: class Accessory has_and_belongs_to_many :phones end class Phone has_and_belongs_to_many :accessories end
I also implemented an intermediate table with and combined index of these tables ID's. i am attempting to display two accessories for each phone which i have added in my seeds file. This is code for my show.html - accessories <div class="container">
<% @accessories.each_slice(3) do |accessory| %> <div class="row" > <% accessory.each do |accessory| %> <div class="col-lg-4" align="center"> <div id="img-box" , title="select image for more details ..." > <% if not accessory.img_url.blank? %> <%= link_to (image_tag accessory.img_url,:size => "200x160" ,class:"img-thumbnail" ),accessory %> <% else %> <%= link_to (image_tag("noimage.jpg",:size => "100x125")),accessory %> <% end %> </div> <br/> Name: <%= accessory.name %> Price: <%= number_to_currency accessory.price, unit: "£" %><br/> <td><%= link_to 'Edit', edit_accessory_path(@accessory) %> | <%= link_to 'Back', accessories_path %> </td> <% end %> </div> </div> <% end %> </div> <% end %> </div>
but i get the error : show.html.erb:37: syntax error, unexpected keyword_ensure, expecting end-of-input When removing <% end %> from a line, i then get the error: undefined method `each_slice' for nil:NilClass i have a link from a phone to the related accessory but wish to display more than one. Thank you for any help :) |
| Rails nested form - refactor create action | cocoon gem Posted: 30 May 2016 05:41 AM PDT Everything is working fine but I want to change the code in create action to something like in update action. Right now, in the create action I am looping through all the values and saving them, but want to do it in a single line. I have a College model. class College< ActiveRecord::Base has_many :staffs, dependent: :destroy accepts_nested_attributes_for :staffs, reject_if: :all_blank, allow_destroy: true end
And this is my Staff.rb class Staff < ActiveRecord::Base belongs_to :college end
And these are my Staffs controller create and update actions def create @college= College.find(params[:college][:id_college_profile] ) staff_params = params[:college][:staffs_attributes].values staff_params.each do |staff_param| @staff = @college.staffs.new @staff.name = staff_param[:name] @staff.designation = staff_param[:designation] @staff.experience = staff_param[:experience] @staff.specialization = staff_param[:specialization] @staff.save end redirect_to dashboard_path(id: @college.id), notice: "Successfully added Staff." end def update @college= College.find(params[:college][:id_college] ) @college.update_attributes(staff_parameters) redirect_to root_path end
These are strong parameters def staff_parameters params.require(:college).permit(:id, staffs_attributes: [:id, :name, :specialization, :experience, :designation, :_destroy]) end
Is there a way to save all of staffs in create action, without looping through all the values, but save all of them with a single line of code as in update action? I have tried this in the StaffsController create action def create @college= College.find(params[:college][:id_college] ) @staff= @college.staffs.new(staff_parameters) @staff.save redirect_to dashboard_path(id: @college.id), notice: "Successfully added Staffs." end
But it threw this error unknown attribute 'staffs_attributes' for Staff.
Can someone kindly help me with this issue? |
| How to pass authentication token in RSpec test for JSON API? Posted: 30 May 2016 04:07 AM PDT I'm trying to add an authorization token to an RSpec get JSON API test in Rails. But everything tried so far results in an error. The issue seems that the token is not being properly passed in the request. expected the response to have a success status code (2xx) but it was 401
Current code: Project_spec.rb (tests) before do @project = create(:project, :key => "123") get '/api/v1/projects/1', {:Authorization => "Token 123"}, format: :json end it "returns correct status" do expect( response ).to have_http_status(:success) end
ProjectsController.rb before_filter :restrict_access, :except => :create def show @project = Project.find(params[:id]) render json: @project end def restrict_access authenticate_or_request_with_http_token do |token, options| Project.exists?(key: token) end end
Based on a few recommended solution found online, I've tried get '/api/v1/projects/1', format: :json, token: "123"
get '/api/v1/projects/1', { 'HTTP-AUTHORIZATION' => 'Token "123"' }, format: :json
get '/api/v1/projects/1', {:Authorization => "Token 123"}, format: :json
But nothing seems to successfully pass the authorization token. Note: Style in #3 works when posting from an external application, but not in the RSpec test itself. Does anyone have experience with this and can share some direction? |
| Load Balancing - Web Applications with NGINX Posted: 30 May 2016 04:51 AM PDT I have a web application ruby on rails who is not configured to multithreading. In nginx config, I set up an upstream block to be load balanced. Like this : upstream myapp { server 127.0.0.1:3075; server 127.0.0.1:3076; server 127.0.0.1:3077; }
I set up also 3 process thin with 3 ports (3075,3076,3077). I think when my first application '127.0.0.1:3075' is busy, all the request will be balanced automatically to my second application '127.0.0.1:3076' or the third one. But load balancing is not work, even though my three web applications are running correctly independent. Where is my problème ? thank you for your reponse. ------------------- nginx config -------------------- upstream myapp_hosts { server 127.0.0.1:3075; server 127.0.0.1:3076; server 127.0.0.1:3077; } server { listen 80; server_name myapp.mydomain.com; rewrite ^(.*)$ http://myapp.mydomain.com$1 permanent; access_log /var/log/nginx/myapp.access.log; location / { proxy_pass http://myapp_hosts/; proxy_connect_timeout 900; proxy_send_timeout 900; proxy_read_timeout 900; proxy_buffer_size 16k; proxy_buffers 32 16k; proxy_busy_buffers_size 64k; } location /public { root /var/www/nemo/; } location /images { root /var/www/nemo/assets/; } location /javascripts { root /var/www/nemo/assets/; } location /stylesheets { root /var/www/nemo/assets/; } client_max_body_size 10m; client_body_buffer_size 128k; client_header_buffer_size 64k; }
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| Access rails helpers methods inside presenter Posted: 30 May 2016 04:00 AM PDT I'm working on rails application, One of view page has lot of complex code, So moved logic to presenters but the problem I'm facing is not able to access helper methods inside the presenter. Could any one help me to solve this issue, gone through the some SOF questions but it is not 'very' specific. Cant we use include helper in the presenter or moving helper method into the presenter. which is the best way to approach this problem. |
| Errors when Deploying Rails app from my mac to vps server with Capistrano and Unicorn Posted: 30 May 2016 03:33 AM PDT I'm trying to deploy my rails app to VPS server with Capistrano and Unicorn but when I run (/etc/init.d/unicorn_app_name_env start) I got the following error (/etc/init.d/unicorn_app_name: INIT_CONF: parameter not set) SSHKit::Runner::ExecuteError: Exception while executing as deploy@IP... /etc/init.d/unicorn_app_name: INIT_CONF: parameter not set What I should to solve this problem? |
| confusion in ruby on rails Posted: 30 May 2016 03:26 AM PDT I'm new in ruby on rails.Encountered a line <span id="searchTab" class="<%=yield(:search_tab_id)%>"><%=link_to "Search", search_items_path %></span>
what the line is doing exactly. I want to implement another tab here named "XYZ" what are the steps I should follow. what all things I have to add in controllers,views,routes etc |
| How to boost the closest created_at field in Elasticsearch? Posted: 30 May 2016 05:19 AM PDT I want to sort my query results following some boost rules and in the same time i want them to be sorted as possible by creation date, if i add a created_at sort, it changes everything and my results are not relevant anymore. So i guess the only way to do that is to boost created_at field (the newest has the biggest bonus in calculating score for that boost) but i dont know how to implement it. This is my query: query = { "query" : { "bool" : { "must" : [ { "range" : { "deadline" : { "gte" : "2016-05-30T11:39:10+02:00" } } }, { "terms" : { "state" : [ "open" ] } }, { "query_string" : { "query" : "chant", "default_operator" : "AND", "analyzer" : "search_francais", "fields" : [ "title^6", "description", "brand", "category_name" ] } } ] } }, "filter" : { "and" : [ { "geo_distance" : { "distance" : "40km", "location" : { "lat" : 48.855736, "lon" : 2.32927300000006 } } } ] }, "sort" : [ { "_score" : "desc" }, #{ # "created_at" : "desc" ==> i tried this but it doesnt change results #} ] }
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| Create Excel file in Ruby on Rails with Axlsx Posted: 30 May 2016 02:58 AM PDT I try to create Excel files with the gem "axlsx". But i work for the first time with this gem and i try one Test. I make one link_to to an controller action. There is no Error, but i didnt find a complete excel file. Link_to : <%= link_to "Test", { :controller => :orders, :action => :invoices_generate }, { class: "btn btn-primary btn-lg", style: "width: 100%;", format: 'xlsx'} %>
My Controller : def invoices_generate respond_to do |format| format.xlsx end end
invoices_generate.xlsx.axlsx : if examples.include? :basic wb.add_worksheet(:name => "Basic Worksheet") do |sheet| sheet.add_row ["First Column", "Second", "Third"] sheet.add_row [1, 2, 3] sheet.add_row [' preserving whitespace'] end end
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| rails submit with diffrent values [loop] in nested forms Posted: 30 May 2016 03:31 AM PDT I am trying to deal in form with 2 level nested resource. My parrent resource is supplier. I've done adding (building) new descedants (address) in new ad edit form. I've also done adding (building) descedant of descedant (contacts) in new form but I have problem with adding descedant of descedant (contacts) in edit form. In edit form I want to add submit button [Add contact] after each contact and when user click on this button go to update method and build new contact instance in proper address -I need send with [Add contact] submit param with address ID. I have no idea how to do it. I've try hidden field but it send last hidden fiel value from loop. It is any chance to send diffrent param with submit button? I have 2 level nested resource. Supplier has descedant -> address Address has descedant -> contact Models: Supplier: has_many :supplier_addresses has_many :addresses, :through => :supplier_addresses accepts_nested_attributes_for :addresses, :allow_destroy => true, :reject_if => :all_blank
Address: has_many :address_contacts has_many :contacts, :through => :address_contacts accepts_nested_attributes_for :contacts, :allow_destroy => true, :reject_if => :all_blank
Contact: has_many :address_contacts has_many :addresses, :through => :address_contacts
Suppliers_Controller: class SuppliersController < ApplicationController before_action :set_supplier, only: [:show, :edit, :update, :destroy] def index if params[:search] @suppliers = Supplier.paginate(page: params[:page], :per_page => 15).by_letter(params[:search]) else @suppliers = Supplier.paginate(page: params[:page], :per_page => 15).order(:name) end end # GET /currencies/new def new @supplier = Supplier.new ad=@supplier.addresses.build ad.contacts.build end def show end def edit ad=@supplier.addresses.build ad.contacts.build end # POST /currencies # POST /currencies.json def create @supplier = Supplier.new(supplier_params) if add_address? @supplier.addresses.build respond_to do |format| format.html { render :new } format.json { render json: @supplier.errors, status: :unprocessable_entity } end elsif add_contact? @supplier.addresses[params[:add_id].to_i].contacts.build respond_to do |format| format.html { render :new } format.json { render json: @supplier.errors, status: :unprocessable_entity } end else respond_to do |format| if @supplier.save flash[:info] = 'Supplier was successfully created.' format.html { redirect_to @supplier } format.json { render :show, status: :created, location: @supplier } else format.html { render :new } format.json { render json: @supplier.errors, status: :unprocessable_entity } end end end end # PATCH/PUT /currencies/1 # PATCH/PUT /currencies/1.json def update if add_address? @supplier.addresses.build respond_to do |format| format.html { render :edit } format.json { render json: @supplier.errors, status: :unprocessable_entity } end elsif add_contact? @supplier.addresses[params[:add_id].to_i].contacts.build respond_to do |format| format.html { render :edit } format.json { render json: @supplier.errors, status: :unprocessable_entity } end else respond_to do |format| if @supplier.update(supplier_params) flash[:info] = 'Supplier was successfully updated.' format.html { redirect_to supplier_url } format.json { render :show, status: :ok, location: @supplier } else format.html { render :edit } format.json { render json: @supplier.errors, status: :unprocessable_entity } end end end end # DELETE /currencies/1 # DELETE /currencies/1.json def destroy @supplier.destroy respond_to do |format| flash[:info] = 'Supplier was successfully deleted.' format.html { redirect_to suppliers_url } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_supplier @supplier = Supplier.find(params[:id]) end #for new add def add_address? params[:commit] == "Add address" end #for new add def add_contact? params[:commit] == "Add contact" end # Never trust parameters from the scary internet, only allow the white list through. def supplier_params params.require(:supplier).permit(:name, :notes, :min_order, :pay_terms, addresses_attributes: [:id, :name, :street1, :street2, :county, :city, :country, :post_code, :_destroy, contacts_attributes:[:id, :name, :job_title, :tel_no, :fax_no, :mobile_no, :email, :invoice_email, :contact_notes, :_destroy]]) end end
Form: <%= form_for(@supplier) do |f| %> <%= f.label :name %> <%= f.text_field :name %> <%= f.fields_for :addresses do |address| %> <%= address.label :street %> <%= address.text_field :street %> <%= address.fields_for :contacts do |contact| %> <%= contact.label :job_title %> <%= contact.text_field :job_title %> <%end%> <%=hidden_field_tag params[:add_id], address.index%> <div class="row"> <div class="actions text-center"> <%= f.submit "Add contact",:class => 'btn btn-sm btn-warning custom2' %> </div> </div> <%end%> <div class="row"> <div class="actions text-center"> <%= f.submit "Add address",:class => 'btn btn-sm btn-warning custom2' %> <%= f.submit :class => 'btn btn-sm btn-success custom2' %> </div> </div> <%end%>
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